TRAFFIC is building on the A55 following a crash on Monday morning.

One lane is closed from Northop Hall West to Pentre Halkyn and two vehicles are involved.

Latest traffic reports show: "One lane closed and slow traffic due to accident, two vehicles involved on A55 North Wales Expressway Eastbound from J32A A5026 (Pentre Halkyn) to J33A (Northop Hall West). Lane one (Of two) is closed."